Specifications include, but are not limited to: A. Radio-tag female Indiana bats from their hibernaculum and track them as they forage and migrate to maternity colonies a. Collect individual location data to determine behavior, speed, timing and duration b. Identify roosts used during migration c. Identify migration pathways and habitat used d. Collect temperature data of bats and ambient air to determine effects of weather on bat migration B. Take blood samples to determine pregnancy timing a. At the hibernaculum b. At the maternity colony C. Radio-tag and track bats to roosts at the end of migration to confirm presence of maternity colony a. Identify roosts used during the transition period between migration and parturition b. Conduct simultaneous exit counts to estimate population size